Panoramic camera



(No Model.) V 3 Sheets-Sheet I. G. Gr. ROOKWOOD &u H. B. SHALLBNBERGBR. PANORAMIO GAMERA..

No. 441,'704. Patented Dec. 2,1890.

ni: Naum; HETERS po.. punto-ume., wsnno. N, n. c4

(No Model.)- r 3 Sheets-Sheet 2.

;ROCKWOOD &1 H. B. SHALLENBERGER.

PANQRAMIC GAMBRA.

No. '441,70'4 Patented Dec. 2,' 1890.

. (No Model.) 3 Sheets -Sheet 3.

G, G. ROCKWOOD 85 H.`B. SHALLENBERGER. PANOEAMIG CAMERA.

No. 441,?04. Patented Dec.2,189o.' m i Fiat-..El

UNITED STATES PATENT OFFICE. s

GEORGE G. ROCKXVOOD, OF NEW YORK, N. Y., AND HERBERT B.SI-IALLEN BERGER, OF ROCHESTER, PENNSYLVANIA.

PANORAM IC CAM ERA.

SPECIFICATION forming part of Letters Patent No. 441,'7'04, dated December 2, 1890.

Application filed February 28,1890. Serial No. 342.180. (Ne model.)

To all whom 't may cancer-n.- being of greater size than the other This 4 Be it known that we, GEORGE G. ROCK- is a convenient but nota necessary construc- 55 WOOD, of the city, county, and State of New tion. The boxes a' a containing the rolls a York, and HERBERT B. SHALLENBERGER, of may have removable ends or sides a o 5 Rochester, county of Beaver, and State of The film is represented at B. It is caused Pennsylvania,haveinvented certain new and to pass from one roll to the other along the useful Improvements in Panoramio Cameras, inner cylindrical surface of the box A, being 6o of which the following is a specification. held in guide-Slots b I). These cause the film Our invention relates to a method of and' to occupy an arc of a circle whose center is at IO apparatus for photographing extended or or very near the center of alens C. The lens panoramic Views. is mounted upon a pivot or axis c in such The special object of theinvention isto promanner that it may be directed toward the 65 Vide means for photographing an extended different portions of the are of the filmin sucviewbya single operation,as will more clearly cession, preserving the focal distance in all i 5 appear hereinafter. positions. The lens C is provided with a box The method, sta:ed in general terms, con- D, constituting in effect an inner camerasists in exposing successiveportions of a senbox, and this swings or turns with the lens 70 sitized plate or film to successive portions of about the pivot c. the View to be photographed by directing In Operating the apparatus it is designed light-rays from the different portions of the that the camera-box D be first set in the poview toward successive portions of the plate siton indicated by the dotted lines in Fig. 1 or film through a lens so moved as to bring and at the proper' moment released and al- 75 successive portions of the plate or film inthe lowed to sweep across the entire surface of path of the light-waves simultaneously with the film under the influence of a spring E,

the exposure of that lens to successive porstopping in the position indicated by the full tions of the View. The apparatus and method lines in Fig. 1. It will be observed that durwill,however, be particularlydescribed in coning this operation the lens will be directed So neetion with the accompanying drawings. toward successive portions of the View as the In the drawings, Figure l is a plan, partly box D uneovers successive portions of the in section,ofacameraforcarrying themethod film, and the box D will exclude the light into operation. Fig. 2 is a side elevation of from all other portions of the film. the same, also partly in section. Figs. 3 and The end of the box D adjacent to the filn 85 et illustrate certain details. Figs. 5, G, 7 and may be provided with an opening into which 8 are enlarged views 'illustrating the condiaphragns or plates R, having slits of difstruction of a shutterforuse with the camera. ferent widths, may be inserted to vary the Referring to the figures, A represents a length of the exposure. The length of excamera. box or casc,whi`ch is semi-cylindrical posure is of course further determined by 0 in form and provided with a lid or cover A'. the tension of the spring E.

It is constructed with two roll-boxes a' & For the purpose of further insuring that 40 one at each side, for holding a sensitized film the film shall be at the proper distance from upon which the pictures are to be taken. the lens when exposed, the boxD may be pro- They may be of any desired size, so that any vided with small rolls f f, one of which is required number of pictures may be taken shown on an enlarged scale in Figs. 3 and a; without recharging the camera. Springs f' maybe enployed for pressing the 5 The general use and operation of roll-holdrolls against the film, they being suitably ers are now well known,and it will be necesmounted for that purpose, as indicated. sary only to state that any of the usual indi- For the purpose 'of allowing freedom of mo- IOO cators may be applied for determining when tion on the part of the lens, the box A may one exposed section of the fil-n has been rebe constructed with a solid front, with the 5o placed by a fresh portion. XVe have shown exception of that portion immediately about similar rolls aa at the two ends forreceiving the lens, and this latter portion may be of the film, and two guide-rolls (0 (0 over which flexible cloth or rubber, as indicated at d d. the film passes. One of these a is shown as For the purpose of examining a View and adjusting the camera, a plate R of ground glass may be inserted at the back of the box A, and a lid R' provided for shutting out the light, except when it is desired to use the glass. lVhen this glass is used, it will be necessary to temporarily remove the film in front of it.

It will be apparent that in order that an even exposure should be given to every part of the film the lens should be uncovered when it starts to move from one limit and that it should be reeovered when it reaches the other limit. Various means may be employed for this purpose. That illustrated in Figs. 5, G, 7, and S we have found to serve excellently in practice. This consists of a plate F, having an opening f in front of the lens and provided with a slide f which is first set in the position shown in Fig. 5 and there held by a detent g and latch g' until the lens is released. The slide is then drawn suddenly downward into the position shown in Fig. 6. The manner of accomplishing this is as follows: The lens-box D, havingbeen turned into the position required to place the spring E under tension, a looking-pin G is dropped through an opening in a plate (1 upon the shutter. The pin strikes the tail of the latch g' and holds it in engagenent with i its detent g against the tension of a spring (1 A lateh 79 engages the pin G by entering a slot k' and thus holds the pin down. An elastic band or spring 'm is stretched from a stud m' upon the slide f to a stud m at the lower end of the shutter-frame. hen now the latch ?a is caused to release the pin G, the camera-box D and lens Care released and respond to the pressure oi' the spring E, and at the same time the slide f is released and responds to the elastic band m. The band m, as its tension is removed, releases itself from the stud m The lens is thus uncovered, as shown in Fig. 6, and the camera-box D noves through its arc. hen it reaches its limit of motion, a stop 72. upon the frame of the box A trips a lateh n' at the botton of the shutter-frame, and this releases a lever 17, which passes beneath the studm' or some other suitable portion of the slide. A band or spring m* immediately tends to draw the lever 1) upward, and this restores the slide to its 'former position, as indicated in Fig. 7. The trip 'n may be placed in such position that the slide will be released imnediately before the lens is brought to rest,.if desired, to insure that the exposure at the end of the are shall not be longer than at other portions.

It is evident that very many other ditterent forms ot' shutters nay be employed and other portions of the apparatus may be considerably modified without departing from the spirit of the invention.

For` the purpose of preventing any rays of light from being reflected from the sides of the diaphragn-box D, wallst t may project inward. These serve to cut off any rays which might otherwise tend to .tog the image.

W'e claim as our invention- 1. In a panoramic camera, the combination of a roll-holder, guides for guiding a iiexible film from one roll to the other through a eylindrical plane, a lens pivoted in the axial line of the cylinder for directing light-rays against different portions of the cylindrical plane in suceession, a shutter for exposing and covering the lens, a releasing device for automatically opening the shutter at one limit of the movement ot' the lens, and a tripping device automatically closing the sane at the other limit of the movement of the lens.

9. The combination, with the pivoted lens, of a panoramic camera, a stationary curved back plate, and an autoatically-operating shutter exposing the lens at one limit of its movement and concealng it at the other limit, substantially as described.

3. In a panoramic camera, the combination of a stationary cainerabox having a semi-cylindrical back, a revolving camerabox pivoted in the axial line, and the stationary box and rollers at the end ol' the pivoted box pressing toward the back, substantially as and for the purpose set i'orth.

4-. In a panoramic camera, the combination of a stationary camera-box having a curved back, a completely-closed pivoted inner camera-box, a lens at one end of the pivoted box, and light-intercepting walls projecting inward from the wallsof the inner pivoted box, substantiall y as described.

5. In a panoramie camera, the combination of a stationary camera-box having a semicylindrical back and an inner le's-carrying box pivoted in the axial line of the semi-cylindrical back, and having side walls extending from the lens to' the back and top and bottom walls, closing the space between the side walls, and Contacts noving with the inner box for holding the film at any time exposed to the lens at the end oi' the box against the back, substantially as described.

6. In a panoramie camera,the combination of a stationary camera-box having an opaquc curved back 'tor reeeiving the film, and a plate of: ground glass inserted in said back.

7. In a panoramic camera, the combination of a stationary camera-box having a curved back, a plate of ground glass inserted therein for use 111 adjusting the camera, and an opaque cover for the same.

In testinony whereof we have hereunto subscribed our names this 15th day of February, A. D. 1800.

GEO. G..ROCI WOOD. IIERBERT B. SHALLENBERGER.

XVitnesses to the signature of Geo. G. lockwood:

WALTER F. DEXTER, ADOLPH W. FRANKE.

'Witnesses t the signature oi' ll'erbert .l. Shallenberger:

A. SAUNDEns MoRnIs, O. l. SIIALLENBERGEH.

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